D-erythrulose (also known as erythrulose) is a four-saccharide carbohydrate with the chemical formula C4H8O4. [1][2] It has a keto group and thus belongs to the ketose family. It is often used in some self-tanning cosmetics in combination with dihydroxyacetone (DHA). [3]Erythrulose/DHA reacts with a
